*, *:before, *:after {
  box-sizing: border-box;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "liga", "kern";
  overflow-y: scroll;
  overflow-x: hidden;
  height: 100%;
  background: linear-gradient(210deg, #9adbbe, #4fc08d);
}

body {
  height: 100%;
  align-items: center;
  justify-content: center;
  font-family: "Source Sans Pro", sans-serif;
}

button {
  background: none;
  border: none;
  color: inherit;
  font-size: inherit;
  font-family: inherit;
  font-weight: inherit;
}
button:focus {
  outline: none;
}
button:hover {
  cursor: pointer;
}

.app {
  width: 420px;
  min-height: 50vh;
  margin: 50px auto;
  justify-content: space-between;
  border-radius: 1em;
  background: #fff;
  overflow: hidden;
  box-shadow: 0 0 5px rgba(25, 25, 25, 0.25);
}

.btn {
  font-size: 14px;
  margin: 0 0.5em;
  border-radius: 2em;
  padding: 0.75em 1.5em;
  cursor: pointer;
  background: none;
  color: #2d7c58;
  border: 1px solid;
  letter-spacing: 1px;
  font-family: "Source Sans Pro", sans-serif;
  color: #4fc08d;
  border: #4fc08d 1px solid;
  transition: 250ms ease-out;
}
.btn:hover, .btn:focus {
  color: #fff;
  background: #4fc08d;
}

.form {
  width: 100%;
  padding: 1.5rem 1rem 0 1rem;
  display: flex;
}
.form__input {
  width: 100%;
  font-size: 14px;
  margin: 0 0.5em;
  border-radius: 2em;
  padding: 0.75em 1.5em;
  background: none;
  font-family: "Source Sans Pro", sans-serif;
  border: #e3e3e3 1px solid;
  transition: border 250ms ease-out;
}
.form__input:focus {
  border: #4fc08d 1px solid;
  outline: none;
}
.todo-list {
  width: 100%;
  padding: 0 1rem;
  flex: 1;
}
.todo-list__item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5em;
  margin-bottom: 0.5em;
  border-radius: 3px;
  transition: 200ms;
  color: #4fc08d;
}
.todo-list__item:last-child {
  margin-bottom: 0;
}
.todo-list__item.complete {
  color: lightgreen;
}
.todo-list__item.complete .todo-list__item-content:after {
  background: lightgreen;
}
.todo-list__item-content {
  position: relative;
}
.todo-list__item-content:after {
  content: "";
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  height: 1px;
  background: #4fc08d;
  transition: 250ms ease-out;
  transform-origin: center;
  transform: scalex(0);
}
.todo-list__item-content:hover:after, .todo-list__item-content:focus:after {
  transform: scalex(1);
}
.todo-list__item-remove {
  margin-left: 0.5em;
  background: none;
  border: 1px solid;
  color: inherit;
  padding: 0;
  line-height: 1;
  width: 2em;
  height: 2em;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 80%;
}

.filters {
  width: 100%;
  display: flex;
  justify-content: space-around;
  padding: 0 1rem 1.5rem 1rem;
}

.list-move,
.list-leave-active,
.list-enter-active {
  transition: 500ms cubic-bezier(0.87, -0.41, 0.19, 1.44);
}

.list-enter,
.list-leave-active {
  transform: translate(100%, 0);
  opacity: 0;
}